31132971207808 has 32 divisors (see below), whose sum is σ = 62035938915120. Its totient is φ = 15563166931200.

The previous prime is 31132971207799. The next prime is 31132971207827. The reversal of 31132971207808 is 80870217923113.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25324338 + ... + 26525233.

Almost surely, 2^{31132971207808} is an apocalyptic number.

It is an amenable number.

31132971207808 is a deficient number, since it is larger than the sum of its proper divisors (30902967707312).

31132971207808 is an equidigital number, since it uses as much as digits as its factorization.

31132971207808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51854276 (or 51854264 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 52.

The spelling of 31132971207808 in words is "thirty-one trillion, one hundred thirty-two billion, nine hundred seventy-one million, two hundred seven thousand, eight hundred eight".